<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="UTF-8" />
        <title>13_堆栈结构-引用数据类型</title>
    </head>
    <body>
        <script>
            var a = [1,2,3];
            var b = a;
            b[1] = 22;
            console.log(a,b);
        </script>
    </body>
</html>